Die Perspektive einer nachhaltigen Hochschule konzentriert sich häufig auf die ökologische und soziale Qualität des Betriebs der Einrichtung sowie die in Forschung und Lehre behandelten Inhalte. Doch bei der Idee einer nachhaltigen Hochschule geht es um mehr.
Sie stellt die Frage nach dem Verhältnis von Hochschule und Gesellschaft neu. Wie geht eine Hochschule mit zentralen gesellschaftlichen Herausforderungen um? Wie interagiert sie mit den gesellschaftlichen Akteuren in ihrem Umfeld? In welcher Form bringt sie sich in nachhaltigkeits-orientierte Transformationsprozesse ein? Diese Dimensionen spielen bisher in der Diskussion um die nachhaltige Hochschule eine untergeordnete Rolle.
Der Beitrag zeigt auf, was unter einer "True University Sustainability" zu verstehen ist wo sich erste Ansätze in deutschen Hochschulen finden lassen.
Vom Inter- zum Intra-Wettbewerb : Stufen der Integration erneuerbarer Energien im Strombereich
(2014)
Deutschland ist auf dem Weg zu einem Stromsystem, welches sich zu 100 Prozent aus Erneuerbaren Energien speist. Verschiedene erneuerbare Erzeugungsoptionen stehen dabei zur Verfügung. Noch befinden diese sich in einem koexistenten Wettbewerb mit fossilen Energieträgern (Inter-Wettbewerb). Im vorliegenden Beitrag entwerfen die Autoren ein Marktdesign, welches einen fairen Wettbewerb der erneuerbaren Erzeugungsoptionen garantieren soll (Intra-Wettbewerb). Ihr Ausgangspunkt ist dabei das Gedankenexperiment, welches einen Zustand zugrunde legt, der sich nahe am Ende des anstehenden Transformationsprozesses mit einer Erzeugungsquote von 100 Prozent aus Erneuerbaren Energien befindet. Dabei analysieren sie auch die Kapazitäten und Interessen der Bundesländer beim Zustandekommen eines Intra-Wettbewerbs.
Umweltverträglichkeitsprüfung und strategische Umweltprüfung als Instrumente des Ressourcenschutzes
(2014)
Vor dem Hintergrund der aktuellen Ressourcenschutzdiskussion wird im Beitrag erläutert, wie Ressourcenschutzbelange in den bestehenden UVPG-Schutzgütern, aber auch darüber hinaus in der Umweltprüfung stärker berücksichtigt werden können. In diesem Zusammenhang stellen die räumlichen und zeitlichen Systemgrenzen der Umweltprüfung eine besondere Herausforderung dar. Es werden erste Ansätze dargestellt, wie ressourcenbezogene Umweltwirkungen und stoffliche und energetische Inanspruchnahmen in die Planungspraxis übernommen werden können.
Sustainability policy in the early 2000s is based on and therefore influenced by scientific literature on "transition". The importance of this link has inspired the authors to explore the structure of cooperating authors and citation networks in the field. In order to understand "transition" literature, we compare it with an alternative term for change, "transformation", which is also used in the context of socio-technical shifts towards sustainability. We expose the different structures of these fields with an overview of keywords, key references, key authors, and the coherence between references and authors. By analysing co-author and citation networks, we find large differences in these groups of documents. The transition literature is characterised by a large network of directly and indirectly cooperating authors with clear clusters; transformation literature contains smaller author networks. Key transition authors are predominantly Dutch. They repeatedly write together and cite each other's work. The transition literature is tightly knit with high degrees of internal references and a clearly distinguishable core. Transformation literature has fewer connections between authors and articles. The connecting articles, each with many global citations, form its basis. This analysis can be used as a step to continue the debate on the role of transition and transformation literature in sustainability and renewable energy policy. The transformation literature teaches us that older streams of thought are still relevant and may be used as "glue" for linking change with respect to sustainable energy to wider developments. Rediscovering existing literature in new combinations may lead to promising new views on sustainable energy.
The food and agricultural sector will face numerous challenges in the next decades, arising from changing global production and consumption patterns, which currently go along with high resource use, causing ecological and socio-economic impacts. The aim of this paper is to illustrate and evaluate the practical applicability of the Hot Spot Analysis methodology in the context of supply chain management in companies. The HSA is a method to identify social and ecological problems along the entire life cycle of a product. Special emphasis is put on a customized implementation in the value chain beef of McDonald's Germany. The HSA of McDonald's beef value chain shows that the main ecological problems arise in the phase of raw material extraction, whereas the main social problems can be identified in the phase of slaughtering. Finally, the paper shows potentials and shortcomings of such a customized application and how the results can be implemented in the sustainability management of a company.
Purpose - Since the registration of the first clean development mechanism (CDM) project in 2004, the CDM has seen a dynamic expansion: the CDM pipeline currently comprises 6,725 projects generating 2.73 billion certified emission reductions (CERs) up to 2012. These CERs result in a substantial financial flow from Annex I to Non-Annex I countries. But CDM projects also result in investments in low carbon technologies, a substantial share of which is focused on the energy sector. The total installed capacity of all CDM projects amounts to 288,944 MW. However, the CDM is not widely taken up in Africa. This holds true for Africa's share in the CDM project pipeline (2.62 per cent), for Africa's share in CERs generated up to 2012 (3.58 per cent) and for the normalized CERs per capita, per country. Two hypothesizes are commonly discussed: first, the continent features low per capita emissions and low abatement potentials. Second, African countries may be hampered by weak institutional frameworks. This article reviews both hypotheses and presents new empirical data. The paper aims to discuss these issues.
Design/methodology/approach - Investigating the greenhouse gas (GHS) abatement potential of 16 energy-related sectors for 11 selected least developed countries in sub-Saharan Africa shows a total theoretical CDM potential of 128.6 million CERs per year. Analyzing investment indicators confirms that most countries are impeded by below average investment conditions.
Findings - It is concluded that Africa offers a considerable range of substantial abatement potentials. However, the weak institutional framework is limiting the uptake of the CDM in Africa. This is underpinned by an analysis which shows if a CDM sector has high investment cost, Africa will have a low share in the sector. If the sector has low investment needs per CER, Africa's share in the CDM sector will be bigger. Investment needs and Africa's share in the pipeline feature a negative correlation.
Research limitations/implications - Supporting CDM development in Africa should not be constraint to technical assistance. It will be crucial to develop an integrated financing approach, comprising the CDM as a co-financing mechanism, to overcome the institutional challenges.
Originality/value - Until today, there are few empirical studies that use concrete criteria and indicators to show why the CDM is underrepresented in Africa. The work presented here contributes to filling this gap.
At current primary steel production levels, the iron and steel industry will fail to meet the 80% emission reduction target without introduction of breakthrough technologies (Wörtler et al., 2013: 19). The current research analyses the technical and economical long-term potential of innovative primary steel production technologies in Germany throughout 2100. Techno-economic models are used to simulate three innovative ore-based steelmaking routes verses the reference blast furnace route (BF-BOF). The innovative routes in focus are blast furnace with CCS (BF-CCS), hydrogen direct reduction (H-DR), and iron ore electrolysis (EW). Energy and mass flows for the production of one tonne of crude steel (CS) are combined with hypothetical price, cost, and revenue data to evaluate the production routes economically, technically, and environmentally. This is a purely theoretical analysis and hence further external factors that may influence practical implementation or profitability are not considered.
Different future developments are considered by using three scenarios, representing an ambitious, a moderate, and a conservative transformation of the German energy sector. In general, looking into the future bares various uncertainties which should be reflected in a suitable manner.
According to the present scenario analysis, chances are that with rising prices for coal and CO2 allowances BF-BOF and even BF-CCS become unprofitable by mid-century. With a high share of renewable energy sources and high prices for CO2 allowances, H-DR and EW become economically attractive in the second half of the current century, when BF-based routes are long unprofitable. Energy and raw material efficiency is significantly higher for H-DR and EW and furthermore, the 80% reduction target by 2050 can be achieved in the ambitious scenario. However, high investment costs and high dependency on electricity prices prohibit a profitable implementation before 2030–2040 without further subsidies. EW is the most energy and resource efficient production route. Since continuous electricity is needed for the continuous operation, the electricity costs are 20–40% higher than for H-DR (with high-capacity hydrogen storage units). Even though hydrogen production implies efficiency losses compared to the EW route, the decoupling of hydrogen production from continuous operation of the steel plant through hydrogen storage offers the opportunity to use cheap excess renewable electricity. This makes the H-DR economically and environmentally the most attractive route and provides a crucial contribution to stabilize the grid and to store excess energy in a 100% renewable energy system.
Rund ein Jahrzehnt wurde in der Wissenschaft nur wenig über Suffizienz diskutiert. Im Jahr 1996 sorgte das Motto "Gut leben statt viel haben" aus der Studie "Zukunftsfähiges Deutschland" noch für Schlagzeilen und regte intensive Diskussionen an. Doch in den 2000er Jahren wurde der Suffizienzdiskurs nur noch von wenigen Institutionen vorangetrieben - zu unattraktiv schien eine Debatte über Verzicht. Inzwischen hat eine Gemengelage aus verschiedenen Ereignissen und Erkenntnissen zu einer Vitalisierung des Suffizienzdiskurses geführt. Ein Auslöser von vielen ist der Anstieg der Öl- und Ressourcenpreise. Ein zweiter wichtiger Treiber: Es haben sich Zweifel über die Heilskraft von "grünen Technologien" breit gemacht. Denn die Wirklichkeit sieht, trotz beeindruckender Ausbauerfolge bei den Erneuerbaren im Stromsektor und gutem Willen der Verbraucher, nicht sehr ermutigend aus - der Ressourcenbedarf ist in Deutschland kaum gesunken, die CO2-Emissionen steigen neuerdings sogar. Suffizienz als Konzept des achtsamen Umgangs mit Ressourcen kann dazu beitragen, Verbrauchs- und Emissionsziele dennoch zu erreichen.
Since in 1992 the United Nations Conference on Environment and Development (UNCED) has been held in Rio de Janeiro, efforts to achieve sustainable development appear to have made only insufficient progress, as the results of the 2012 follow-up conference show. One reason for this is that among the various paths to sustainability being discussed, the strategies enjoying greater support are those that continue to be committed to economic and material growth, this as opposed to those that question the growth paradigm. Among the latter are the sufficiency and subsistence approaches. The sufficiency approach delves into the causes and (supposed) boons of a continuous increase in material and immaterial goods. With the demand that individuals not always be forced to always want more, it points out a way to a structural transition in society. The subsistence approach, on the other hand, seeks to draft a path to greater autonomy and quality of life by strengthening regional, local or indi-vidual self-provisioning. To be in harmony with sustainability, it must be possible to freely choose the two ways of life; they must not be mandated by the authorities.